org.matheclipse.core.eval.interfaces

Class AbstractArg2

java.lang.Object

org.matheclipse.core.eval.interfaces.AbstractEvaluator

org.matheclipse.core.eval.interfaces.AbstractFunctionEvaluator

org.matheclipse.core.eval.interfaces.AbstractArg2

All Implemented Interfaces:

IFunctionEvaluator, IEvaluator

Direct Known Subclasses:

AbstractArgMultiple, AbstractNonOrderlessArgMultiple, Binomial, JacobiSymbol, Mod, Pochhammer, Power, Quotient, Surd

public abstract class AbstractArg2
extends AbstractFunctionEvaluator

Evaluate a function with 2 arguments.

Constructor Summary

Constructors

Constructor and Description
AbstractArg2()

Method Summary

Modifier and Type	Method and Description
IExpr	binaryOperator(IExpr o0, IExpr o1)
IExpr	e2ApcomplexArg(ApcomplexNum ac0, ApcomplexNum ac1)
IExpr	e2ApfloatArg(ApfloatNum af0, ApfloatNum af1)
IExpr	e2ComArg(IComplex c0, IComplex c1)
IExpr	e2DblArg(INum d0, INum d1)
IExpr	e2DblComArg(IComplexNum d0, IComplexNum d1)
IExpr	e2FraArg(IFraction f0, IFraction f1)
IExpr	e2FunArg(IAST f0, IAST f1)
IExpr	e2IntArg(IInteger i0, IInteger i1)
IExpr	e2ObjArg(IExpr o0, IExpr o1) Evaluate the function for the 2 given expressions.
IExpr	e2SymArg(ISymbol s0, ISymbol s1)
IExpr	eComFraArg(IComplex c0, IFraction i1)
IExpr	eComIntArg(IComplex c0, IInteger i1)
IExpr	eFunIntArg(IAST f0, IInteger i1)
IExpr	evaluate(IAST ast, EvalEngine engine) Symbolic evaluation of a function.

Methods inherited from class org.matheclipse.core.eval.interfaces.AbstractFunctionEvaluator

createRuleFromMethod, getNormalizedNegativeExpression, getNormalizedNegativeExpression, getPeriodicParts, getPureImaginaryPart, getRuleAST, initSerializedRules, isNegativeExpression, setUp

Methods inherited from class org.matheclipse.core.eval.interfaces.AbstractEvaluator

numericEval

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

AbstractArg2

public AbstractArg2()

Method Detail

binaryOperator

public IExpr binaryOperator(IExpr o0,
                            IExpr o1)

e2ComArg

public IExpr e2ComArg(IComplex c0,
                      IComplex c1)

e2ApfloatArg

public IExpr e2ApfloatArg(ApfloatNum af0,
                          ApfloatNum af1)

e2DblArg

public IExpr e2DblArg(INum d0,
                      INum d1)

e2ApcomplexArg

public IExpr e2ApcomplexArg(ApcomplexNum ac0,
                            ApcomplexNum ac1)

e2DblComArg

public IExpr e2DblComArg(IComplexNum d0,
                         IComplexNum d1)

e2FraArg

public IExpr e2FraArg(IFraction f0,
                      IFraction f1)

e2SymArg

public IExpr e2SymArg(ISymbol s0,
                      ISymbol s1)

e2FunArg

public IExpr e2FunArg(IAST f0,
                      IAST f1)

e2IntArg

public IExpr e2IntArg(IInteger i0,
                      IInteger i1)

e2ObjArg

public IExpr e2ObjArg(IExpr o0,
                      IExpr o1)

Evaluate the function for the 2 given expressions.

Parameters:

o0 -

o1 -

Returns:

F#NIL if no evaluation is possible.

eComFraArg

public IExpr eComFraArg(IComplex c0,
                        IFraction i1)

eComIntArg

public IExpr eComIntArg(IComplex c0,
                        IInteger i1)

eFunIntArg

public IExpr eFunIntArg(IAST f0,
                        IInteger i1)

evaluate

public IExpr evaluate(IAST ast,
                      EvalEngine engine)

Description copied from class: AbstractFunctionEvaluator

Symbolic evaluation of a function. ast.get(0) (or alternatively ast.head()) contains the head (i.e. the function symbol) of this abstract syntax tree (AST).
From ast.arg1() to ast.get(n) the ast contains the first to n-th argument of the function (alternatively you get the first to fifth argument with the methods arg1(), arg2(),... arg5()).
If necessary use the methods from the Validate class to check the number or types of arguments in the evaluate method.
Note: if the symbolic evaluation isn't possible or no result is found the evaluate method returns with a null value without throwing an exception!

Specified by:

evaluate in interface IFunctionEvaluator

Specified by:

evaluate in class AbstractFunctionEvaluator

Parameters:

ast - the abstract syntax tree (AST) which should be evaluated

engine - the users current evaluation engine

Returns:

the evaluated object or null, if evaluation isn't possible

See Also:

Validate, IExpr.head(), IAST.arg1(), IAST.arg2(), IAST.arg3()